Add README content for OpenAI connectors

openapi/openai.audio/README.md

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+## Overview
+This [Ballerina](https://ballerina.io) connector, which is actively maintained by a dedicated community, provides streamlined access to the [OpenAI Audio API](https://platform.openai.com/docs/api-reference/audio). Its main function is to act as an interface between your Ballerina application and OpenAI's sophisticated speech-to-text AI models. By utilizing this connector, developers can easily leverage the power of OpenAI's latest advancements in artificial intelligence for speech recognition and transcription tasks.
+
+[API Documentation](https://lib.ballerina.io/ballerinax/openai.audio/latest)
+
+## Prerequisites
+* Create an [OpenAI account](https://platform.openai.com/signup).
+* Obtain an API key by following [these instructions](https://platform.openai.com/docs/api-reference/authentication).
+
+## Quick start
+### Step 1: Create a Ballerina package
+Use `bal new` to create a new package. 
+
+```sh
+bal new openai_audio
+cd openai_audio
+```
+
+### Step 2: Invoke the audio API 
+Copy the following code to the `main.bal` file.
+
+```ballerina
+import ballerinax/openai.audio;
+import ballerina/io;
+
+// Read the OpenAI key
+configurable string openAIKey = ?;
+
+public function main(string fileName) returns error? {
+    // Create an OpenAI audio client.
+    audio:Client OpenAIAudio = check new ({
+        auth: {token: openAIKey}
+    });
+
+    // Create a speech-to-text request.
+    byte[] fileContent = check io:fileReadBytes(fileName);
+    audio:CreateTranscriptionRequest request = {
+        model: "whisper-1",
+        file: {fileContent, fileName}
+    };
+
+    // Call the API.
+    audio:CreateTranscriptionResponse response =
+        check OpenAIAudio->/audio/transcriptions.post(request);
+    io:println(response);
+}
+```
+
+### Step 3: Set up your OpenAI API Key
+Create a file called `Config.toml` at the root of the package directory and copy for the following content.
+```toml
+# OpenAI API Key
+openAIKey="..."
+```
+
+### Step 4: Run the program
+Use the `bal run -- audio.mp3` command to compile and run the Ballerina program.

openapi/openai.embeddings/README.md

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+## Overview
+This [Ballerina](https://ballerina.io) connector, which is actively maintained by a dedicated community, provides streamlined access to the [OpenAI Embeddings API](https://platform.openai.com/docs/api-reference/embeddings). It offers an interface to extract embeddings from a diverse range of AI models recently devised by OpenAI. This connector is a crucial tool for developers intending to utilize the cutting-edge artificial intelligence capabilities of these models in various computational tasks.
+
+[API Documentation](https://lib.ballerina.io/ballerinax/openai.embeddings/latest)
+
+## Prerequisites
+* Create an [OpenAI account](https://platform.openai.com/signup).
+* Obtain an API key by following [these instructions](https://platform.openai.com/docs/api-reference/authentication).
+
+## Quick start
+### Step 1: Create a Ballerina package
+Use `bal new` to create a new package. 
+
+```sh
+bal new openai_embeddings
+cd openai_embeddings
+```
+
+### Step 2: Invoke the embeddings API 
+Copy the following code to the `main.bal` file.
+
+```ballerina
+import ballerinax/openai.embeddings;
+import ballerina/io;
+
+// Read the OpenAI key
+configurable string openAIKey = ?;
+
+public function main() returns error? {
+    // Create an OpenAI embeddings client.
+    embeddings:Client embeddingsClient = check new ({
+        auth: {token: openAIKey}
+    });
+
+    embeddings:CreateEmbeddingRequest request = {
+        model: "text-embedding-ada-002",
+        input: "The food was delicious and the waiter..."
+    };
+
+    embeddings:CreateEmbeddingResponse response = 
+        check embeddingsClient->/embeddings.post(request);
+    io:println(response);
+}
+```
+
+### Step 3: Set up your OpenAI API Key
+Create a file called `Config.toml` at the root of the package directory and copy for the following content.
+```toml
+# OpenAI API Key
+openAIKey="..."
+```
+
+### Step 4: Run the program
+Use the `bal run` command to compile and run the Ballerina program.

openapi/openai.finetunes/README.md

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+## Overview
+This [Ballerina](https://ballerina.io) connector, which is actively maintained by a dedicated community, provides streamlined access to the [OpenAI Fine-tunes API](https://platform.openai.com/docs/api-reference/fine-tunes). The OpenAI Fine-tunes API allows developers to tailor the latest AI models developed by OpenAI according to their specific requirements.
+
+[API Documentation](https://lib.ballerina.io/ballerinax/openai.finetunes/latest)
+
+## Prerequisites
+* Create an [OpenAI account](https://platform.openai.com/signup).
+* Obtain an API key by following [these instructions](https://platform.openai.com/docs/api-reference/authentication).
+
+## Quick start
+### Step 1: Create a Ballerina package
+Use `bal new` to create a new package. 
+
+```sh
+bal new openai_finetunes
+cd openai_finetunes
+```
+
+### Step 2: Invoke the fine-tunes API 
+Copy the following code to the `main.bal` file.
+
+```ballerina
+import ballerinax/openai.finetunes;
+import ballerina/io;
+
+// Read the OpenAI key
+configurable string openAIKey = ?;
+
+public function main(string fileName) returns error? {
+    // Create an OpenAI fine-tunes client.
+    finetunes:Client finetunesClient = check new ({
+        auth: {token: openAIKey}
+    });
+
+    byte[] fileContent = check io:fileReadBytes(fileName);
+    finetunes:CreateFileRequest fileRequest = {
+        file: {fileContent, fileName},
+        purpose: "fine-tune"
+    };
+    finetunes:OpenAIFile fileResponse = 
+        check finetunesClient->/files.post(fileRequest);
+    string fileId = fileResponse.id;
+
+    finetunes:CreateFineTuneRequest fineTuneRequest = {
+        model: "ada",
+        training_file: fileId
+    };
+    finetunes:FineTune fineTuneResponse = 
+        check finetunesClient->/fine\-tunes.post(fineTuneRequest);
+    io:println(fineTuneResponse.id);
+}
+```
+
+### Step 3: Set up your OpenAI API Key
+Create a file called `Config.toml` at the root of the package directory and copy for the following content.
+```toml
+# OpenAI API Key
+openAIKey="..."
+```
+
+### Step 4: Run the program
+Use the `bal run -- sample.jsonl` command to compile and run the Ballerina program.

openapi/openai.images/README.md

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+## Overview
+This [Ballerina](https://ballerina.io) connector, which is actively maintained by a dedicated community, provides streamlined access to the [OpenAI Images API](https://platform.openai.com/docs/api-reference/images). The OpenAI Images API facilitates access to the innovative DALL.E models developed by OpenAI, designed for a range of image-based tasks. This connector is an essential tool for developers aiming to employ the power of OpenAI's advanced image processing AI capabilities in their applications.
+
+[API Documentation](https://lib.ballerina.io/ballerinax/openai.images/latest)
+
+## Prerequisites
+* Create an [OpenAI account](https://platform.openai.com/signup).
+* Obtain an API key by following [these instructions](https://platform.openai.com/docs/api-reference/authentication).
+
+## Quick start
+### Step 1: Create a Ballerina package
+Use `bal new` to create a new package. 
+
+```sh
+bal new openai_images
+cd openai_images
+```
+
+### Step 2: Invoke the images API 
+Copy the following code to the `main.bal` file.
+
+```ballerina
+import ballerinax/openai.images;
+import ballerina/io;
+
+// Read the OpenAI key
+configurable string openAIKey = ?;
+
+public function main() returns error? {
+    images:Client openAIImages = check new ({
+        auth: {token: openAIKey}
+    });
+
+    images:CreateImageRequest request = {
+        prompt: "A cute baby sea otter",
+        n: 1,
+        size: "256x256",
+        response_format: "url",
+        user: "user-1234"
+    };
+    images:ImagesResponse response = 
+        check openAIImages->/images/generations.post(request);
+    io:println(response);
+}
+```
+
+### Step 3: Set up your OpenAI API Key
+Create a file called `Config.toml` at the root of the package directory and copy for the following content.
+```toml
+# OpenAI API Key
+openAIKey="..."
+```
+
+### Step 4: Run the program
+Use the `bal run` command to compile and run the Ballerina program.

openapi/openai.moderations/README.md

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+## Overview
+This [Ballerina](https://ballerina.io) connector, which is actively maintained by a dedicated community, provides streamlined access to the [OpenAI Moderations API](https://platform.openai.com/docs/api-reference/moderations). The OpenAI Moderations API provides a way to access new moderation models developed by OpenAI for content moderation tasks.
+
+[API Documentation](https://lib.ballerina.io/ballerinax/openai.moderations/latest)
+
+## Prerequisites
+* Create an [OpenAI account](https://platform.openai.com/signup).
+* Obtain an API key by following [these instructions](https://platform.openai.com/docs/api-reference/authentication).
+
+## Quick start
+### Step 1: Create a Ballerina package
+Use `bal new` to create a new package. 
+
+```sh
+bal new openai_moderations
+cd openai_moderations
+```
+
+### Step 2: Invoke the moderations API 
+Copy the following code to the `main.bal` file.
+
+```ballerina
+import ballerinax/openai.moderations;
+import ballerina/io;
+
+// Read the OpenAI key
+configurable string openAIKey = ?;
+
+public function main() returns error? {
+    moderations:Client moderationsClient = check new ({
+        auth: {token: openAIKey}
+    });
+
+    moderations:CreateModerationRequest request = {
+        input: "I want to kill them.",
+        model: "text-moderation-stable"
+    };
+
+    moderations:CreateModerationResponse response = 
+        check moderationsClient->/moderations.post(request);
+    io:println(response);
+}
+```
+
+### Step 3: Set up your OpenAI API Key
+Create a file called `Config.toml` at the root of the package directory and copy for the following content.
+```toml
+# OpenAI API Key
+openAIKey="..."
+```
+
+### Step 4: Run the program
+Use the `bal run` command to compile and run the Ballerina program.

openapi/openai.text/README.md

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 ## Overview
-This is a community-maintained [Ballerina](https://ballerina.io) connector for the [OpenAI Completions API](https://platform.openai.com/docs/api-reference/completions). The OpenAI Completions API provides a way to access new Text AI models developed by OpenAI for a variety of tasks.
+This is a community-maintained [Ballerina](https://ballerina.io) connector for the [OpenAI Completions API](https://platform.openai.com/docs/api-reference/completions). It serves as a powerful bridge, connecting your Ballerina applications to the cutting-edge Text AI models developed by OpenAI. This makes it an invaluable tool for those seeking to incorporate advanced AI functionalities into their projects.
 
 [API Documentation](https://lib.ballerina.io/ballerinax/openai.text/latest)